Aging studies on discontinuous silver films in ultrahigh vacuum

Manjunatha Pattabi, N. Suresh, S. M. Chaudhari, A. Banerjee, D. M. Phase, A. Gupta, K. Mohan Rao

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The results of aging studies carried out on discontinuous silver films deposited on glass substrates held at room temperature in a vacuum of 2 × 10-8 Torr are presented in this article. The films were prepared by electron beam deposition at a rate of 0.2 Å/s. Discontinuous silver films show considerable aging for extended period even in a clean ultrahigh vacuum (UHV) obtained using a turbomolecular pump when the oxygen partial pressure is as low as 10-11 Torr, thus ruling out the possibility of oxidation being responsible for the aging in these films. The coalescence rate values in UHV and in a vacuum of 2 × 10-6 Torr obtained using an oil diffusion pump are nearly the same. This indicates that the aging of island films is not due to oxidation. A film with an initial resistance of 2 M Ω/□ showed a drastic fall in resistance after about 30 min of aging. This interesting discontinuous-semicontinuous transition observed in a conservative system is a clear evidence for the mobility of islands.

Original languageEnglish
Pages (from-to)340-343
Number of pages4
JournalThin Solid Films
Volume322
Issue number1-2
DOIs
Publication statusPublished - 08-06-1998

Fingerprint

Ultrahigh vacuum
Silver
ultrahigh vacuum
Aging of materials
silver
Pumps
Vacuum
diffusion pumps
Oxidation
vacuum
oxidation
Coalescence
Partial pressure
coalescing
partial pressure
Electron beams
Oils
oils
electron beams
pumps

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Pattabi, M., Suresh, N., Chaudhari, S. M., Banerjee, A., Phase, D. M., Gupta, A., & Mohan Rao, K. (1998). Aging studies on discontinuous silver films in ultrahigh vacuum. Thin Solid Films, 322(1-2), 340-343. https://doi.org/10.1016/S0040-6090(97)00911-5
Pattabi, Manjunatha ; Suresh, N. ; Chaudhari, S. M. ; Banerjee, A. ; Phase, D. M. ; Gupta, A. ; Mohan Rao, K. / Aging studies on discontinuous silver films in ultrahigh vacuum. In: Thin Solid Films. 1998 ; Vol. 322, No. 1-2. pp. 340-343.
@article{ec3b2a7968aa4865a8ada48bfbeceb7d,
title = "Aging studies on discontinuous silver films in ultrahigh vacuum",
abstract = "The results of aging studies carried out on discontinuous silver films deposited on glass substrates held at room temperature in a vacuum of 2 × 10-8 Torr are presented in this article. The films were prepared by electron beam deposition at a rate of 0.2 {\AA}/s. Discontinuous silver films show considerable aging for extended period even in a clean ultrahigh vacuum (UHV) obtained using a turbomolecular pump when the oxygen partial pressure is as low as 10-11 Torr, thus ruling out the possibility of oxidation being responsible for the aging in these films. The coalescence rate values in UHV and in a vacuum of 2 × 10-6 Torr obtained using an oil diffusion pump are nearly the same. This indicates that the aging of island films is not due to oxidation. A film with an initial resistance of 2 M Ω/□ showed a drastic fall in resistance after about 30 min of aging. This interesting discontinuous-semicontinuous transition observed in a conservative system is a clear evidence for the mobility of islands.",
author = "Manjunatha Pattabi and N. Suresh and Chaudhari, {S. M.} and A. Banerjee and Phase, {D. M.} and A. Gupta and {Mohan Rao}, K.",
year = "1998",
month = "6",
day = "8",
doi = "10.1016/S0040-6090(97)00911-5",
language = "English",
volume = "322",
pages = "340--343",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
number = "1-2",

}

Pattabi, M, Suresh, N, Chaudhari, SM, Banerjee, A, Phase, DM, Gupta, A & Mohan Rao, K 1998, 'Aging studies on discontinuous silver films in ultrahigh vacuum', Thin Solid Films, vol. 322, no. 1-2, pp. 340-343. https://doi.org/10.1016/S0040-6090(97)00911-5

Aging studies on discontinuous silver films in ultrahigh vacuum. / Pattabi, Manjunatha; Suresh, N.; Chaudhari, S. M.; Banerjee, A.; Phase, D. M.; Gupta, A.; Mohan Rao, K.

In: Thin Solid Films, Vol. 322, No. 1-2, 08.06.1998, p. 340-343.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Aging studies on discontinuous silver films in ultrahigh vacuum

AU - Pattabi, Manjunatha

AU - Suresh, N.

AU - Chaudhari, S. M.

AU - Banerjee, A.

AU - Phase, D. M.

AU - Gupta, A.

AU - Mohan Rao, K.

PY - 1998/6/8

Y1 - 1998/6/8

N2 - The results of aging studies carried out on discontinuous silver films deposited on glass substrates held at room temperature in a vacuum of 2 × 10-8 Torr are presented in this article. The films were prepared by electron beam deposition at a rate of 0.2 Å/s. Discontinuous silver films show considerable aging for extended period even in a clean ultrahigh vacuum (UHV) obtained using a turbomolecular pump when the oxygen partial pressure is as low as 10-11 Torr, thus ruling out the possibility of oxidation being responsible for the aging in these films. The coalescence rate values in UHV and in a vacuum of 2 × 10-6 Torr obtained using an oil diffusion pump are nearly the same. This indicates that the aging of island films is not due to oxidation. A film with an initial resistance of 2 M Ω/□ showed a drastic fall in resistance after about 30 min of aging. This interesting discontinuous-semicontinuous transition observed in a conservative system is a clear evidence for the mobility of islands.

AB - The results of aging studies carried out on discontinuous silver films deposited on glass substrates held at room temperature in a vacuum of 2 × 10-8 Torr are presented in this article. The films were prepared by electron beam deposition at a rate of 0.2 Å/s. Discontinuous silver films show considerable aging for extended period even in a clean ultrahigh vacuum (UHV) obtained using a turbomolecular pump when the oxygen partial pressure is as low as 10-11 Torr, thus ruling out the possibility of oxidation being responsible for the aging in these films. The coalescence rate values in UHV and in a vacuum of 2 × 10-6 Torr obtained using an oil diffusion pump are nearly the same. This indicates that the aging of island films is not due to oxidation. A film with an initial resistance of 2 M Ω/□ showed a drastic fall in resistance after about 30 min of aging. This interesting discontinuous-semicontinuous transition observed in a conservative system is a clear evidence for the mobility of islands.

UR - http://www.scopus.com/inward/record.url?scp=0032496517&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032496517&partnerID=8YFLogxK

U2 - 10.1016/S0040-6090(97)00911-5

DO - 10.1016/S0040-6090(97)00911-5

M3 - Article

AN - SCOPUS:0032496517

VL - 322

SP - 340

EP - 343

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1-2

ER -

Pattabi M, Suresh N, Chaudhari SM, Banerjee A, Phase DM, Gupta A et al. Aging studies on discontinuous silver films in ultrahigh vacuum. Thin Solid Films. 1998 Jun 8;322(1-2):340-343. https://doi.org/10.1016/S0040-6090(97)00911-5